* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifndef CAVS_H
-#define CAVS_H
+#ifndef FFMPEG_CAVS_H
+#define FFMPEG_CAVS_H
#include "dsputil.h"
#include "mpegvideo.h"
int16_t ref;
} vector_t;
-typedef struct residual_vlc_t {
+typedef struct dec_2dvlc_t {
int8_t rltab[59][3];
int8_t level_add[27];
int8_t golomb_order;
int inc_limit;
int8_t max_run;
-} residual_vlc_t;
+} dec_2dvlc_t;
typedef struct {
MpegEncContext s;
DCTELEM *block;
} AVSContext;
+extern const uint8_t ff_cavs_dequant_shift[64];
+extern const uint16_t ff_cavs_dequant_mul[64];
+extern const dec_2dvlc_t ff_cavs_intra_dec[7];
+extern const dec_2dvlc_t ff_cavs_inter_dec[7];
+extern const dec_2dvlc_t ff_cavs_chroma_dec[5];
+extern const uint8_t ff_cavs_chroma_qp[64];
+extern const uint8_t ff_cavs_scan3x3[4];
+extern const uint8_t ff_cavs_partition_flags[30];
extern const int_fast8_t ff_left_modifier_l[8];
extern const int_fast8_t ff_top_modifier_l[8];
extern const int_fast8_t ff_left_modifier_c[7];
extern const int_fast8_t ff_top_modifier_c[7];
extern const vector_t ff_cavs_intra_mv;
extern const vector_t ff_cavs_un_mv;
-
-static inline void load_intra_pred_luma(AVSContext *h, uint8_t *top,
- uint8_t **left, int block) {
- int i;
-
- switch(block) {
- case 0:
- *left = h->left_border_y;
- h->left_border_y[0] = h->left_border_y[1];
- memset(&h->left_border_y[17],h->left_border_y[16],9);
- memcpy(&top[1],&h->top_border_y[h->mbx*16],16);
- top[17] = top[16];
- top[0] = top[1];
- if((h->flags & A_AVAIL) && (h->flags & B_AVAIL))
- h->left_border_y[0] = top[0] = h->topleft_border_y;
- break;
- case 1:
- *left = h->intern_border_y;
- for(i=0;i<8;i++)
- h->intern_border_y[i+1] = *(h->cy + 7 + i*h->l_stride);
- memset(&h->intern_border_y[9],h->intern_border_y[8],9);
- h->intern_border_y[0] = h->intern_border_y[1];
- memcpy(&top[1],&h->top_border_y[h->mbx*16+8],8);
- if(h->flags & C_AVAIL)
- memcpy(&top[9],&h->top_border_y[(h->mbx + 1)*16],8);
- else
- memset(&top[9],top[8],9);
- top[17] = top[16];
- top[0] = top[1];
- if(h->flags & B_AVAIL)
- h->intern_border_y[0] = top[0] = h->top_border_y[h->mbx*16+7];
- break;
- case 2:
- *left = &h->left_border_y[8];
- memcpy(&top[1],h->cy + 7*h->l_stride,16);
- top[17] = top[16];
- top[0] = top[1];
- if(h->flags & A_AVAIL)
- top[0] = h->left_border_y[8];
- break;
- case 3:
- *left = &h->intern_border_y[8];
- for(i=0;i<8;i++)
- h->intern_border_y[i+9] = *(h->cy + 7 + (i+8)*h->l_stride);
- memset(&h->intern_border_y[17],h->intern_border_y[16],9);
- memcpy(&top[0],h->cy + 7 + 7*h->l_stride,9);
- memset(&top[9],top[8],9);
- break;
- }
-}
-
-static inline void load_intra_pred_chroma(AVSContext *h) {
- /* extend borders by one pixel */
- h->left_border_u[9] = h->left_border_u[8];
- h->left_border_v[9] = h->left_border_v[8];
- h->top_border_u[h->mbx*10+9] = h->top_border_u[h->mbx*10+8];
- h->top_border_v[h->mbx*10+9] = h->top_border_v[h->mbx*10+8];
- if(h->mbx && h->mby) {
- h->top_border_u[h->mbx*10] = h->left_border_u[0] = h->topleft_border_u;
- h->top_border_v[h->mbx*10] = h->left_border_v[0] = h->topleft_border_v;
- } else {
- h->left_border_u[0] = h->left_border_u[1];
- h->left_border_v[0] = h->left_border_v[1];
- h->top_border_u[h->mbx*10] = h->top_border_u[h->mbx*10+1];
- h->top_border_v[h->mbx*10] = h->top_border_v[h->mbx*10+1];
- }
-}
+extern const vector_t ff_cavs_dir_mv;
static inline void modify_pred(const int_fast8_t *mod_table, int *mode) {
*mode = mod_table[*mode];
}
}
-static inline void modify_mb_i(AVSContext *h, int *pred_mode_uv) {
- /* save pred modes before they get modified */
- h->pred_mode_Y[3] = h->pred_mode_Y[5];
- h->pred_mode_Y[6] = h->pred_mode_Y[8];
- h->top_pred_Y[h->mbx*2+0] = h->pred_mode_Y[7];
- h->top_pred_Y[h->mbx*2+1] = h->pred_mode_Y[8];
-
- /* modify pred modes according to availability of neighbour samples */
- if(!(h->flags & A_AVAIL)) {
- modify_pred(ff_left_modifier_l, &h->pred_mode_Y[4] );
- modify_pred(ff_left_modifier_l, &h->pred_mode_Y[7] );
- modify_pred(ff_left_modifier_c, pred_mode_uv );
- }
- if(!(h->flags & B_AVAIL)) {
- modify_pred(ff_top_modifier_l, &h->pred_mode_Y[4] );
- modify_pred(ff_top_modifier_l, &h->pred_mode_Y[5] );
- modify_pred(ff_top_modifier_c, pred_mode_uv );
- }
-}
-
static inline void set_intra_mode_default(AVSContext *h) {
h->pred_mode_Y[3] = h->pred_mode_Y[6] = INTRA_L_LP;
h->top_pred_Y[h->mbx*2+0] = h->top_pred_Y[h->mbx*2+1] = INTRA_L_LP;
*h->col_type = I_8X8;
}
-
-/**
- * initialise predictors for motion vectors and intra prediction
- */
-static inline void init_mb(AVSContext *h) {
- int i;
-
- /* copy predictors from top line (MB B and C) into cache */
- for(i=0;i<3;i++) {
- h->mv[MV_FWD_B2+i] = h->top_mv[0][h->mbx*2+i];
- h->mv[MV_BWD_B2+i] = h->top_mv[1][h->mbx*2+i];
- }
- h->pred_mode_Y[1] = h->top_pred_Y[h->mbx*2+0];
- h->pred_mode_Y[2] = h->top_pred_Y[h->mbx*2+1];
- /* clear top predictors if MB B is not available */
- if(!(h->flags & B_AVAIL)) {
- h->mv[MV_FWD_B2] = ff_cavs_un_mv;
- h->mv[MV_FWD_B3] = ff_cavs_un_mv;
- h->mv[MV_BWD_B2] = ff_cavs_un_mv;
- h->mv[MV_BWD_B3] = ff_cavs_un_mv;
- h->pred_mode_Y[1] = h->pred_mode_Y[2] = NOT_AVAIL;
- h->flags &= ~(C_AVAIL|D_AVAIL);
- } else if(h->mbx) {
- h->flags |= D_AVAIL;
- }
- if(h->mbx == h->mb_width-1) //MB C not available
- h->flags &= ~C_AVAIL;
- /* clear top-right predictors if MB C is not available */
- if(!(h->flags & C_AVAIL)) {
- h->mv[MV_FWD_C2] = ff_cavs_un_mv;
- h->mv[MV_BWD_C2] = ff_cavs_un_mv;
- }
- /* clear top-left predictors if MB D is not available */
- if(!(h->flags & D_AVAIL)) {
- h->mv[MV_FWD_D3] = ff_cavs_un_mv;
- h->mv[MV_BWD_D3] = ff_cavs_un_mv;
- }
- /* set pointer for co-located macroblock type */
- h->col_type = &h->col_type_base[h->mby*h->mb_width + h->mbx];
-}
-
-static inline void check_for_slice(AVSContext *h);
-
-/**
- * save predictors for later macroblocks and increase
- * macroblock address
- * @returns 0 if end of frame is reached, 1 otherwise
- */
-static inline int next_mb(AVSContext *h) {
- int i;
-
- h->flags |= A_AVAIL;
- h->cy += 16;
- h->cu += 8;
- h->cv += 8;
- /* copy mvs as predictors to the left */
- for(i=0;i<=20;i+=4)
- h->mv[i] = h->mv[i+2];
- /* copy bottom mvs from cache to top line */
- h->top_mv[0][h->mbx*2+0] = h->mv[MV_FWD_X2];
- h->top_mv[0][h->mbx*2+1] = h->mv[MV_FWD_X3];
- h->top_mv[1][h->mbx*2+0] = h->mv[MV_BWD_X2];
- h->top_mv[1][h->mbx*2+1] = h->mv[MV_BWD_X3];
- /* next MB address */
- h->mbx++;
- if(h->mbx == h->mb_width) { //new mb line
- h->flags = B_AVAIL|C_AVAIL;
- /* clear left pred_modes */
- h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL;
- /* clear left mv predictors */
- for(i=0;i<=20;i+=4)
- h->mv[i] = ff_cavs_un_mv;
- h->mbx = 0;
- h->mby++;
- /* re-calculate sample pointers */
- h->cy = h->picture.data[0] + h->mby*16*h->l_stride;
- h->cu = h->picture.data[1] + h->mby*8*h->c_stride;
- h->cv = h->picture.data[2] + h->mby*8*h->c_stride;
- if(h->mby == h->mb_height) { //frame end
- return 0;
- } else {
- //check_for_slice(h);
+static inline int dequant(AVSContext *h, DCTELEM *level_buf, uint8_t *run_buf,
+ DCTELEM *dst, int mul, int shift, int coeff_num) {
+ int round = 1 << (shift - 1);
+ int pos = -1;
+ const uint8_t *scantab = h->scantable.permutated;
+
+ /* inverse scan and dequantization */
+ while(--coeff_num >= 0){
+ pos += run_buf[coeff_num];
+ if(pos > 63) {
+ av_log(h->s.avctx, AV_LOG_ERROR,
+ "position out of block bounds at pic %d MB(%d,%d)\n",
+ h->picture.poc, h->mbx, h->mby);
+ return -1;
}
+ dst[scantab[pos]] = (level_buf[coeff_num]*mul + round) >> shift;
}
- return 1;
+ return 0;
}
-#endif /* CAVS_H */
+void ff_cavs_filter(AVSContext *h, enum mb_t mb_type);
+void ff_cavs_load_intra_pred_luma(AVSContext *h, uint8_t *top, uint8_t **left,
+ int block);
+void ff_cavs_load_intra_pred_chroma(AVSContext *h);
+void ff_cavs_modify_mb_i(AVSContext *h, int *pred_mode_uv);
+void ff_cavs_inter(AVSContext *h, enum mb_t mb_type);
+void ff_cavs_mv(AVSContext *h, enum mv_loc_t nP, enum mv_loc_t nC,
+ enum mv_pred_t mode, enum block_t size, int ref);
+void ff_cavs_init_mb(AVSContext *h);
+int ff_cavs_next_mb(AVSContext *h);
+void ff_cavs_init_pic(AVSContext *h);
+void ff_cavs_init_top_lines(AVSContext *h);
+int ff_cavs_init(AVCodecContext *avctx);
+int ff_cavs_end (AVCodecContext *avctx);
+
+#endif /* FFMPEG_CAVS_H */
projects / ffmpeg / blobdiff